Printing-machine.



J. F. MAHLSTEDT.

PRINTING MACHINE. APPLICATION HLVED JULY 29, 1913.

Patented Apr. 27, 1915.

2 SHEETS-SHEET I.

J. F. MAHLSTEDT.

PRINTING MACHINE. APPLICATION FILED JULY 29. I913.

Patented Apr; 27, 1915 2 SHEETSJSHEET 2.

.7 I Iwaezzzar. 11/ YZMA A I Toallhbhoht itmay concern:

, pmoe ANQELES, CALIFORNIA.

"WW1 illt WAC a it; ama gam, v rainwa er Lettera Patent. "Patent hpriwt, T915.

7 amnion nei July 1am. an no. retire.

Be it known that 1, JOHN F. hllanrsrnn'r, acitizien of the United States, residingat ljos Angeis, in the county of Los Angeles and State of. California, have invented a new and useful Printing-Machine, of which.

the following is 'a s ecification.

This invention re ates to improvements in printing machines such as shown in a former patent of mine, #1,016,756, February 6, 1912, which machine is adapted for rinting letters circulars and the like wit the headi of the letter with ordinary printing in of any preferred color, the body of the letter being printed with an inked ribbon to imitate typewriting, while the signature of the letter may be printed with ink to give the efiect of writing.

One object of the invention is to provide for aliningthe sheets in a pack after beingprinted.

Another object is to provide aper guards which may be adjusted lateral y to suit the Width of the paper, and which will oerate to prevent the printed sheet from tying upwardly While it is being moved by the conveyor from the impression roller to the conveyer drum.

Another object is to provide means for quickly shooting the printed sheet edgewise off from the end of the conveyor, thereby insuring a delivery of the sheet from the conveyer which has heretofore been uncertain on account of static electricity which he causes the paper to tend to stick to the conhit - veyer.

As the machine, except for the novel features forming the present invention, is substantially similar to that shown in the said former patent, I shalloonfine the description herein to the novel features in the present case, describing only so much of the old as may be necessary.

Referring to the drawings: Figure 1 is a side elevation of the machine with a portion of the receiving table broken away. Fig. 2 is a plan view of the receiving table, a portion of which is broken away, together with a portion of the conveyer. Fig. 3 is a section on line ar -w Fig. 2. ]Fig. i is a section on line m-w Fig. 2.

in order to prevent-the paper from flying upwardly on the conveyor, I provide paper guards which comprise two blades 81 which are located above the conveyer, and may be adjusted laterally to suit the width of the sheets being printed. ,Each blade 81, as shown in F1g.4, extends into a box 82, the latter being slidable on a cross bar 83, there bein a follower 84 within each box 82, whic is pressed against the blade 81 by a COIIIgHGSSlOLl spring 85, thereby frictionally hol ing each paperguard in the desired position and permitting it to be instantly shifted laterally when desired. These guards prevent the paper from flying upwardly rom the conveyor.

Under certain atmospheric conditions it has been found that the sheets have a tendency to adhere. to the conveyor belts on account of static electricity and to insure firm y pivoted on arod 88 and held against lateral mavement by any adjustable sleeve 89. The rollers 86 roll idly upon the top of roller 77 and act to shoot each sheet of paper e ewise onto the receiving table 90.

he sheets which are received on the receiving table 90 are automaticallyplaced in proper alinement to form a perfect stack by meansof three plates 91 92 and 93. The plate .91 is stationary, while the plates 92 and 93 are arranged at right angles to each other, and are caused to reciprocate, the receiving table 90 being provlded with slots 94 and 95, which permit of the necessary broadside movement of the respective plates 92 and 93'. A bar 96 is slidable on the under side of the receiving table 90, and the plate 93 is rigidly secured thereto, so that when the bar 96 reciprocates, the plate 93 will be reciprocated therewith. A bar 97 is mounted to slide transversely to the bar 96, and the plate 92 is rigidly secured to the bar 97. The bar 97 is en aged by a lateral arm 98, which projects mm a lever 99, which 1 s pivoted at 100 to a bracket 101. A 0011 spring 102 'is connected to the lever 99 and to a stationary pin 103. In order to operate the lever 99, a lever 104 is employed, its upper end engaging lever 99. Lever 104 1s pivoted at 105 to the frame 1, and 1tslower end carries an ofi'set roller 100, whlch 1s 0 erated by a cam 107 on the gear 0, see ll ig. 1, so that as the gear 6 revolves 1t 1ntermittentl oscillates the lever 104, and operates the lever 99 to reciprocate the plates 92 and 93. These plates are so adjusted that attheir inner strokes they shift each sheet of paper edgewise into perfect alinement with the sheets which have been delivered I the other sliding bar,

, said lever.

to the receiving table, and which have in like manner been moved into. alinement with each other by the reciprocating plates 92 and 93. a v

There is provided an ink plate 108 rotatably mounted in a manner well understood in the art on'a 0st 116 which projects upward from a U-li the traveling bed 2. A ratchet 118, pawl lever 120, and roller 124 together with other cooperating elements,not shown, because of the nature of the views, efl'ect rotation of the ink plate in a manner well understood in the art, and therefore not necessary to show and describe in detail herein.

What I claim is:

1. In a printin machine, printing means, a receiving tab e, means for delivering printed sheets from the printing means to said table, devices projecting up from said receiving table and movable against the edges of the sheets thereon, a sliding bar carrying one of said devices, another sliding bar carrfng another of said devices, said sliding ars being at right angles to each other, a lever, one end of which is connected to one sliding bar, said lever having a rigid offset arm which engages and operates and means for rocking 2. In a printi machine, printing means, a receiving tab e, printed sheetsfrom the printing means to sald table, devices projecting up from said ar 117 extending out from means for delivering receiving table and movable against the ed of the sheets thereon, a slidin bar carrying one of said devices, another s ding bar carrying another of said devices, said sliding bars being at ri ht angles to each other, a lever, one end 0 which is connected to one sliding bar, said lever having an ofiset arm which engages the other sliding bar, a spring connected to said lever for moving it in one direction, said printing means embracing a rotating element, a cam carried bg said rotating element, a pivoted lever wit one end engaging said cam, and its other end movable against the first named lever.

. 3. In a printing machine, printing means, a conv'eyer for carrying printed sheets from the printing means, a cross bar above said conveyor, boxes slidable on the cross bar, a paper guard comprising a blade extending throu h each box, a follower plate within each box and a compression spring between the box and follower plate actin to hold the lower portion of the box frictionally against the cross bar and to hold said plate frictionally between the crossbar and follower plate, permitting lateral movement of the blade along the cross bar and 1ongitudinal movement of the blade w1th respect to the cross bar. In testimon whereof I have hereunto set my' hand at o's Angeles, California, this 16th day of Ju 1913.

, oHN F. MAHLSTEDT.

In presence of- Gno.'T. HAOKLEY,

LORA M. Bownas. 

